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This paper proposes a method for merging Bluetooth and WLAN technologies to face the problem of indoor positioning. Firstly, using Bluetooth measurements the zone where the target object is located is enclosed. Afterwards, processing WiFi measurements the RSS readings are compared only against the fingerprints of the points within the previously determined(More)
This paper presents UWSim: a new software tool for visualization and simulation of underwater robotic missions. The software visualizes an underwater virtual scenario that can be configured using standard modeling software. Controllable underwater vehicles, surface vessels and robotic manipulators, as well as simulated sensors, can be added to the scene and(More)
The subject of this paper is the conversion of a given speaker's voice (the source speaker) into another identified voice (the target one). We assume we have at our disposal a large amount of speech samples from source and target voice with at least a part of them being parallel. The proposed system is built on a mapping function between source and target(More)
The analysis of bug reports is an important subfield within the mining software repositories community. It explores the rich data available in defect tracking systems to uncover interesting and actionable information about the bug triaging process. While bug data is readily accessible from systems like Bugzilla and JIRA, a common database schema and a(More)
MOTIVATION DNA sequences are formed by patches or domains of different nucleotide composition. In a few simple sequences, domains can simply be identified by eye; however, most DNA sequences show a complex compositional heterogeneity (fractal structure), which cannot be properly detected by current methods. Recently, a computationally efficient segmentation(More)
This paper presents the baseline text-to-speech system developed at UPC (Ogmios) plus our recent work on speech prosody generation and the procedures to create high quality language resources for speech synthesis. These contributions have been evaluated within the TC-STAR European project, which is focused on speech-to-speech translation. Several presented(More)
Voice conversion (VC) technology allows to transform the voice of the source speaker so that it is perceived as the voice of a target speaker. One of the applications of VC is speech-to-speech translation where the voice has to inform, not only about what is said, but also about who is the speaker. This paper introduces the different methods submitted by(More)
Software ecosystems are coherent collections of software projects that evolve together and are maintained by the same developer community. Tools for analysing and visualising the evolution of software ecosystems must not only take into account the software product, but the development community as well. SECONDA is a software ecosystem visualization and(More)
Person following with mobile robots has traditionally been an important research topic. It has been solved, in most cases, by the use of machine vision or laser rangefinders. In some special circumstances, such as a smoky environment, the use of optical sensors is not a good solution. This paper proposes and compares alternative sensors and methods to(More)